Tungsten Inert Gas Welding | TIG | Metal Inert Gas Welding | MIG | Types of Welding |Telugu lecture

Tungsten Inert Gas Welding | TIG | Metal Inert Gas Welding | MIG | Types of Welding |Telugu lecture
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Tungsten Inert Gas (TIG) welding and Metal Inert Gas (MIG) welding are both arc welding processes that use an electric arc to create a weld. However, they differ in terms of the electrode, shielding gas, and application. Here's an overview of each:

Tungsten Inert Gas (TIG) Welding:
Electrode:

TIG welding uses a non-consumable tungsten electrode. The electrode does not melt during the welding process.
Shielding Gas:

Argon or a mixture of argon and helium is used as a shielding gas. This gas protects the weld pool from atmospheric contamination.
Filler Material:

Filler material is added manually to the weld pool, as needed, and it is typically in the form of a separate filler rod.
Process Characteristics:

TIG welding allows for precise control over the welding parameters, making it suitable for thin materials and intricate welds.
It produces high-quality welds with minimal spatter and a clean appearance.
TIG welding is commonly used in industries such as aerospace, automotive, and precision fabrication.
Metal Inert Gas (MIG) Welding:
Electrode:

MIG welding uses a consumable wire electrode that is fed continuously from a spool. The wire melts during the welding process, providing filler material.
Shielding Gas:

Typically, a mixture of argon and carbon dioxide or argon and oxygen is used as a shielding gas. The gas protects the weld pool and helps with the arc stability.
Filling Material:

The filler material is the same as the electrode wire and is automatically fed into the weld pool by the welding machine.
Process Characteristics:

MIG welding is a faster process compared to TIG welding, making it suitable for high-production applications.
It is versatile and can be used on a variety of materials and thicknesses.
MIG welding is commonly used in industries such as automotive, construction, and general fabrication.
Key Differences:
Precision vs. Speed:

TIG welding offers precise control and is suitable for intricate work, while MIG welding is faster and more suitable for high-production applications.
Filler Material:

In TIG welding, filler material is added manually using a separate filler rod. In MIG welding, the filler material is the same as the electrode wire and is automatically fed.
Applications:

TIG welding is commonly used for thin materials and critical applications where precision is essential. MIG welding is often used for general fabrication, construction, and situations where speed is a priority.
Both TIG and MIG welding have their advantages and are used in different industries based on the specific requirements of the welding application. The choice between the two depends on factors such as material type, thickness, and the desired welding speed and quality.

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